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Copyright © 2010: PennWell Corporation
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Houston, Texas 77027
(713) 621-9720
Copyright © 2010: PennWell Corporation
All Rights Reserved.
Pig Trap
Pig Trap news and technical articles from Oil & Gas Journal. Search Pig Trap latest and archived news and articles
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SUBSEA PRECOMMISSIONING—1: Nord Stream natural gas pipeline highlights need to integrate precommissioning
… a 48-in. ball valve, which allowed for the individual launching of the dewatering pigs from Germany. A temporary pig trap installed at the German end of the pipeline launched dewatering pigs using a 48-in. diameter ball valve. The temporary …
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Study improves estimation of damage from stuck pigs, hydrates
… the calculation of the pig arrest load on the receiving pig trap door. No published data are available for model validation ..... a gas storage site. The major barrel of the receiving pig trap had a 16-in. diameter. Estimates placed the amount …
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Subsea isolation techniques advance
… following elements: • Custom-designed pig trap and pigging spread. • High-friction ..... through the riser (Fig. 4). A pig trap and pigging pump launched the high ..... recovered all pigs in the temporary pig trap and closed the ESDV and new valve …
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REFINERY GASES—1: Hydrogen, nitrogen assist compliance with new, tougher environmental regs
… undesired moisture content, contamination of products by residues of the blasting abrasives and environmental problems. A pig trap and nitrogen injection point was installed for this pipeline restoration at Rongellen, Switzerland (Fig. 7) CryoClean …
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Methods help remove black powder from gas pipelines
… using the same pig with new caps and gauge plate. The pig trap this time caught 1,600 kg of black powder and the pig ..... back under way required venting gas with powder from the pig trap , creating a sufficient pressure drop across the pig to …
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North Sea Pipelines- Conclusion: Dual-diameter pigging reaches new extremes; Langeled looms
… and gauging, hydrotesting, dewatering with air, drying with air, nitrogen purging, and gas filling. A temporary pig trap will be included at the subsea valve station at Sleipner. LLS will be operational, transporting sales gas, prior to …
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DRA for gas pipelining successful in Gulf of Mexico trial
… the MO 863A separator and incoming pig trap to determine when the diesel and pig ..... limited by the holding capacity of the pig trap . It would have been better to run ..... form a true batch treatment, but the pig trap was not set up to do that. The same …
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North Sea Pipelines-1: Extensive subsea commissioning, pigging pose challenges
… received in a 28-in. retrievable pig trap . Operations pigs would have to perform ..... can be justified, and then a subsea pig trap solution is used. Such pig traps ..... discharge should be out of the open pig trap door in the downstream end of the …
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Equipment/Software/Literature
… process control systems are typically used to support 'permit to work' procedures during safety relief valve changeover, pig trap loading and retrieval, and filter changeover. These new safety devices can be integrated with most quarter-turn and …
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Field experience shows how to inspect odd, noninspectable platform risers
… have radii of 15 D. Unfortunately, each riser contains one forged unbarred T-connection at some distance from the pig - trap . Additionally, this T-connection has an ID reduction of some 10%. Another requirement of ENAP was to inspect a 10 …
